Planets Puzzle Brain Teasers 3 Balls Puzzle Twisty Toy NEW Gift This puzzle was invented by Oskar van Deventer, a designer of all the gear puzzle and much more It has four Identical balls arranged like tetrahedron next to each other, held inside a frame The balls are planets, where two planets touch one or the other must have a crater at that spot There are four colors regions on each planet Plastic color: blue, red, green, and yellow